问题 多项选择题

二级公路路面的基层可选用( )。

A.水泥稳定土基层

B.石灰稳定土基层

C.石灰工业废渣稳定土基层

D.填缝碎石基层

E.级配砾石基层

答案

参考答案:A,B,C,D

解析: 水泥稳定土基层可适用于各种交通类别的基层和底基层;石灰稳定土基层适用于各级路面的底基层,可作二级和二级以下的公路的基层,但不可作高级路面的基层;石灰工业废渣稳定土基层适用于各级路面的基层和底基层,但其中的二灰土不应作高级沥青路面及高速公路和一级公路上水泥混凝土路面的基层;级配砾石基层可适用于二级和二级以下的公路的基层及各级公路的底基层;填缝碎石基层可用于各级公路的底基层和二级以下的公路的基层。

解答题
完形填空
We often see dogs always put their tongues(舌头)out in summer. But   1    the dogs didn’t do so. Long long ago, the dog was very bad .He   did a good deed.                   
One summer day the dog   3   into a forest.  4  he saw the forest was beautiful and clean ,  a  5   idea came to him. Then he brought  6   dirty things to the forest and put 7   everywhere. What he did was  8   by a monkey who hid   a big tree. He didn’t tell anyone    10 the dog did because   11   did not know why the dog did so.        
Several days    12   ,it got hotter and hotter , and the dirty things became rotten(腐烂).The air smelt    13  . Many animals fell ill. All the other animals became angry and tried     14    who had done it and punish him. The money knew    15        bad the dog was. So he     16   the other animals the truth. They catch up with the dog and     17  him eat all the dirty things and     18        the forest clean.
After that the dog     19     honest. To remember this, he put his tongue out in  20.   
小题1:
A.at lastB.at leastC.in the pastD.first of all
小题2:
A.neverB.oftenC.for everD.suddenly
小题3:
A.enteredB.arrivedC.reachedD.went
小题4:
A.SoB.WhenC.So thatD.Once
小题5:
A.goodB.badC.wonderfulD.common
小题6:
A.a lotB.a great manyC.muchD.a little
小题7:
A.itB.thatC.theseD.them
小题8:
A.lookedB.caughtC.watchedD.seen
小题9:
A.behindB.beforeC.aroundD.besides
小题10:
A.howB.whenC.whatD.why
小题11:
A.heB.himC.whomD.which
小题12:
A.beforeB.agoC.laterD.long
小题13:
A.terribleB.niceC.badlyD.clean
小题14:
A.not to tellB.to find outC.not tellingD.finding out
小题15:
A.veryB.whatC.whyD.how
小题16:
A.saidB.spokeC.toldD.answered
小题17:
A.wantedB.letC.allowedD.asked
小题18:
A.keepB.letC.haveD.make
小题19:
A.wasn’tB.didn’t seem to beC.becameD.went
小题20:
A.springB.summerC.autumnD.winter